Finding the Fourth Proportional to 121,950,000.63, 168,291,162.41 and 66,195,384.84
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Solution
The fourth proportional to 121,950,000.63, 168,291,162.41 and 66,195,384.84 is: 91,349,718.76
Step by Step Solution
- Step 1: Write the proportion equation
121,950,000.63 : 168,291,162.41 = 66,195,384.84 : x - Step 2: Convert to fraction form
121,950,000.63/168,291,162.41 = 66,195,384.84/x - Step 3: Cross multiply
121,950,000.63x = 168,291,162.41 × 66,195,384.84 - Step 4: Simplify right side
121,950,000.63x = 11,140,098,260,569,916 - Step 5: Solve for x
x = 11,140,098,260,569,916/121,950,000.63 - Step 6: Final answer
x = 91,349,718.76
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.